19989200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1$

素因数の和:106

約数の個数: 180

約数和(自身を含む): 61350240

約数和(自身を除く): 41361040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 59, 70, 77, 80, 88, 100, 110, 112, 118, 121, 140, 154, 175, 176, 200, 220, 236, 242, 275, 280, 295, 308, 350, 385, 400, 413, 440, 472, 484, 550, 560, 590, 605, 616, 649, 700, 770, 826, 847, 880, 944, 968, 1100, 1180, 1210, 1232, 1298, 1400, 1475, 1540, 1652, 1694, 1925, 1936, 2065, 2200, 2360, 2420, 2596, 2800, 2950, 3025, 3080, 3245, 3304, 3388, 3850, 4130, 4235, 4400, 4543, 4720, 4840, 5192, 5900, 6050, 6160, 6490, 6608, 6776, 7139, 7700, 8260, 8470, 9086, 9680, 10325, 10384, 11800, 12100, 12980, 13552, 14278, 15400, 16225, 16520, 16940, 18172, 20650, 21175, 22715, 23600, 24200, 25960, 28556, 30800, 32450, 33040, 33880, 35695, 36344, 41300, 42350, 45430, 48400, 49973, 51920, 57112, 64900, 67760, 71390, 72688, 82600, 84700, 90860, 99946, 113575, 114224, 129800, 142780, 165200, 169400, 178475, 181720, 199892, 227150, 249865, 259600, 285560, 338800, 356950, 363440, 399784, 454300, 499730, 571120, 713900, 799568, 908600, 999460, 1249325, 1427800, 1817200, 1998920, 2498650, 2855600, 3997840, 4997300, 9994600, 19989200]

約数ペア:

[(1, 19989200), (2, 9994600), (4, 4997300), (5, 3997840), (7, 2855600), (8, 2498650), (10, 1998920), (11, 1817200), (14, 1427800), (16, 1249325), (20, 999460), (22, 908600), (25, 799568), (28, 713900), (35, 571120), (40, 499730), (44, 454300), (50, 399784), (55, 363440), (56, 356950), (59, 338800), (70, 285560), (77, 259600), (80, 249865), (88, 227150), (100, 199892), (110, 181720), (112, 178475), (118, 169400), (121, 165200), (140, 142780), (154, 129800), (175, 114224), (176, 113575), (200, 99946), (220, 90860), (236, 84700), (242, 82600), (275, 72688), (280, 71390), (295, 67760), (308, 64900), (350, 57112), (385, 51920), (400, 49973), (413, 48400), (440, 45430), (472, 42350), (484, 41300), (550, 36344), (560, 35695), (590, 33880), (605, 33040), (616, 32450), (649, 30800), (700, 28556), (770, 25960), (826, 24200), (847, 23600), (880, 22715), (944, 21175), (968, 20650), (1100, 18172), (1180, 16940), (1210, 16520), (1232, 16225), (1298, 15400), (1400, 14278), (1475, 13552), (1540, 12980), (1652, 12100), (1694, 11800), (1925, 10384), (1936, 10325), (2065, 9680), (2200, 9086), (2360, 8470), (2420, 8260), (2596, 7700), (2800, 7139), (2950, 6776), (3025, 6608), (3080, 6490), (3245, 6160), (3304, 6050), (3388, 5900), (3850, 5192), (4130, 4840), (4235, 4720), (4400, 4543)]